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RTL-SDR V3 Receiver Dongle (hardware modded R820T2/RTL2838U DVB-T Tuner Dongles) [94] Pre-built and pre-modded with custom driver 0.5 – 1766 MHz (mod: RTL2832U Q-branch pins soldered to antenna port) [95] Matches sampling rate, but with filter roll-off 8 No 2.4 MHz (can go up to 3.2 MHz but drops samples) 1 ? USB Yes Yes Yes SDRplay: RSP1A [96]
Software-defined radio (SDR) is a radio communication system where components that conventionally have been implemented in analog hardware (e.g. mixers, filters, amplifiers, modulators/demodulators, detectors, etc.) are instead implemented by means of software on a computer or embedded system. [1]
Used in some DVB-T USB dongle TV receivers, namely the RTL-SDR ones used for software-defined radio. UART clock allows integer division to common baud rates up to 14,400(×16×125) or 28,800(×8×125). 29.4912 921600 UART clock allows integer division to common baud rates up to 921,600(×16×2). 29.50 SDTV
HackRF One is a wide band software defined radio (SDR) half-duplex transceiver created and manufactured by Great Scott Gadgets. It is able to send and receive signals. Its principal designer, Michael Ossmann, launched a successful Kickstarter campaign in 2014 with a first run of the project called HackRF. [1]
A short-range device (SRD), described by ECC Recommendation 70-03, is a radio-frequency transmitter device used in telecommunication that has little capability of causing harmful interference to other radio equipment.
In the box at the focus of the dish, called a low-noise block downconverter (LNB), each block of frequencies is converted to the IF range of 950–2150 MHz by two fixed frequency local oscillators at 9.75 and 10.6 GHz. One of the two blocks is selected by a control signal from the set top box inside, which switches on one of the local oscillators.
Although not the first software-defined radio on the market, the IC-7300 was the first mass-produced mainstream amateur radio to use SDR technology instead of the older PLL-based transceiver design. [4] Designed to replace the older IC-746PRO the IC-7300 is smaller and significantly lighter than its predecessor. [5]
M17 uses Frequency-Division Multiple Access (FDMA) technology in which different communication streams are separated by frequency and run concurrently. It utilizes 4,800 symbols per second, 4-level frequency-shift keying (4FSK) with a root Nyquist filter applied to the bitstream. Radio channels are 9 kHz wide, with channel spacing of 12.5 kHz.